American Library Association. Government Documents Round Table, Cline, N., & Heymann, J. (1978). Directory of government document collections & librarians (2d ed.). Congressional Information Service.
Lua i Stíl Chicago (17ú heag.)American Library Association. Government Documents Round Table, Nancy Cline, agus Jaia Heymann. Directory of Government Document Collections & Librarians. 2d ed. Washington, D.C.: Congressional Information Service, 1978.
Lua MLA (8ú heag.)American Library Association. Government Documents Round Table, et al. Directory of Government Document Collections & Librarians. 2d ed. Congressional Information Service, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.